Real-time tree foliage surface estimation using a ground laser scanner.
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The optimization of most pesticide and fertilizer applications is based on overall grove conditions. In this paper, we propose a measurement system to estimate the foliage surface of a tree crop. The system is based on a ground laser scanner that estimates the volume of the trees and then extrapolates their leaf area using simple and fast algorithms to allow true real-time operation. Tests with pear trees demonstrated that the relation between the volume and the foliage can be interpreted as linear with a coefficient of correlation (R) of 0.81, and the foliage surface can be estimated from this volume with an average error less than 6%.
CitationPalacín, J. [et al.]. Real-time tree foliage surface estimation using a ground laser scanner.. "IEEE transactions on instrumentation and measurement", Agost 2007, vol. 56, núm. 4, p. 1377-1383.